HeatWater.com | WaterService@nyle.com | (800) 777-6953 | Rev. IM-E360-060523 HeatWater.com | WaterService@nyle.com | (800) 777-6953 | Rev. IM-E360-060523
Installation: Power Wiring
34
Installation: Power Wiring
Heat pump water heaters are voltage-specific, and require proper planning to
provide the electrical support appropriate to each unit. Please be sure to refer
to the electrical specifications in Table 2 of this manual, Table 5 below, specific
product submittals, and the requirements and installation instructions below.
e-Series units expect to have two separate power feeds from the building: a
main power feed, and a smaller 120v power feed intended to be connected to
an electrical source with generator backup for freeze protection during power
outages.
If the unit will not be installed in freezing conditions, and/or if the main power feed
is itself on a generator, an optional Unified Power Package accessory can be
ordered to consolidate the unit into a single point power feed from the building. It
is very important that power outages and freeze protection be considered in the
power plan. Unified Power Package instructions are included in that accessory’s
documentation.
Power Requirements:
1. Voltage is correct to within +/- 5% of ratings and within +/-2% between phases.
2. Power is clean, reliable, and well grounded.
3. Wire and breakers are appropriately sized for the load
4. Wire and breakers are properly specified for the environment they are installed
in.
5. Backup generators should include line conditioning suitable for running
electronics.
6. Follow manufacturer’s torque specifications for all power wire equipment by
others.
7. Install service disconnects on incoming power feeds at the heat pump location.
8. All power wiring to the unit must be rated for 600v.
Improper handling of unit electrical power can result in immediate
equipment damage, fires, injury, and death. Ensure only qualified
personnel interact with main power lines. Never work while power
is live; use all possible safety precautions and perform all work in
accordance with appropriate local codes, National Electric Code,
and/or CSA regulations.
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